如何配置催产剂？
参考答案：
（1）根据雌雄鱼重量及数量计算激素的总用量
（2）以每条鱼不超过3ml为标准，计算所用生理盐水的量
需要专业估价的资产必须同时具有“独一无二”和“不可移动”两个特性。( )
Reserve buoyancy is（）.
A.also called GM
B.the void portion of the ship below the waterline which is enclosed and watertight
C.affected by the number of transverse watertight bulkheads
D.the watertight portion of a vessel above the waterline
